Short answer
Both are portable amplifiers, $199 against $169.
The Shanling H2 reaches 100 dB on 566 of the 567 models here, the iFi hip-dac 3 on 565.
| Specification | iFi hip-dac 3 | Shanling H2 |
|---|---|---|
| Power into 32Ω | 280 mW | 680 mW |
| Power into 150Ω | 60 mW | 145 mW |
| Power into 300Ω | 30 mW | 73 mW |
| Power into 600Ω | 15 mW | 36 mW |
| Output impedance | 1 Ω | not published |
| Output noise | not published | not published |
| Price | $199 | $169 |
| Headphones it reaches 100 dB on out of 567 | 565 | 566 |
Not published means the maker leaves it out, so that axis cannot be compared.
| Balanced | iFi hip-dac 3 | Shanling H2 |
|---|---|---|
| Socket | 4.4mm | no separate rating |
| Power into 32Ω | 400 mW | — |
| Power into 300Ω | 43 mW derived | — |
| Output impedance | 1 Ω | — |
| Output noise | not published | — |
| Headphones it reaches 100 dB on out of 567 | 565 | — |
Only the iFi hip-dac 3 has a separate balanced rating from its maker; through it, it reaches 100 dB on 565 of the 567 models here. The Shanling H2 may still have a balanced socket — its spec sheet simply gives no figure for one, so there is nothing to put beside it. Derived figures are worked out from the loads the maker did publish.
| Load | iFi hip-dac 3 | Shanling H2 |
|---|---|---|
| 32 Ω | Published | Published |
| 150 Ω | Derived | Derived |
| 300 Ω | Derived | Derived |
| 600 Ω | Derived | Derived |
Both makers publish a power rating. iFi hip-dac 3 publishes at 32 Ω; Shanling H2 at 32 Ω. The other rows are worked out from those.
The two publish at the same loads, which is the one case where the rows of this table can be read straight across.
1 headphone reaches 100 dB on the Shanling H2 but not on the iFi hip-dac 3 — Moondrop PARA.
565 of the 567 models here reach 100 dB on both.
Headroom is at a 100 dB SPL peak.
The widest gap on the list is the Audio-Technica ATH-R70X: Shanling H2 has +15 dB of headroom there against +11 dB. 4 dB is about 2.4 times the power, which matters for peaks rather than for how loud the music sits.
The hiss columns are empty for iFi hip-dac 3 and Shanling H2 because neither maker publishes no output noise figure.
| Headphone | Impedance | Needs | iFi hip-dac 3 headroom | Shanling H2 headroom | iFi hip-dac 3 hiss | Shanling H2 hiss |
|---|---|---|---|---|---|---|
| Shure SE846 | 9 Ω | 0.04 mW | +33 dB | +37 dB | not published | not published |
| Campfire Audio Andromeda 2020 | 9 Ω | 4.0 mW | +13 dB | +17 dB | not published | not published |
| Audeze LCD-2 Classic | 70 Ω | 0.79 mW | +22 dB | +26 dB | not published | not published |
| Beyerdynamic DT 1990 Pro (250Ω) | 250 Ω | 0.63 mW | +18 dB | +21 dB | not published | not published |
| HiFiMAN HE400se | 25 Ω | 7.9 mW | +14 dB | +18 dB | not published | not published |
| Audio-Technica ATH-R70X | 470 Ω | 1.6 mW | +11 dB | +15 dB | not published | not published |
| Sennheiser HD 600 | 300 Ω | 6.6 mW | +7 dB | +10 dB | not published | not published |
| HiFiMAN Susvara | 60 Ω | 50 mW | +5 dB | +9 dB | not published | not published |
The iFi hip-dac 3 costs $30 more than the Shanling H2, and on these three axes the money buys nothing: among the 567 models here there is not one that the iFi hip-dac 3 handles and the Shanling H2 does not — not on power, not on the one-eighth rule, not on hiss. The traffic runs the other way: the cheaper Shanling H2 drives one model to 100 dB that the iFi hip-dac 3 does not.
Only published figures count here; blank axes are counted separately.
Each in full: iFi hip-dac 3 and Shanling H2.